A circular aluminum alloy [E = 70 GPa; a = 22.5 x 10-6/°C; v = 0.33] pipe has an outside diameter of 225 mm, a wall thickness of 7 mm, and a length of 5.9 m. The pipe supports a compressive load of 690 kN. After the temperature of the pipe drops 50°C, determine: (a) the axial deformation of the pipe. (b) the change in diameter of the pipe. Answer: (a) ō = i AD = i mm mm

Q: 3. Find the thickness of a cast iron cylinder 250 mm in diameter to carry a pressure of 0.7 N/mm2.…

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Q: The composite shaft consists of a copper rod that fits loosely inside an aluminum sleeve. The two…

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Q: The rigid bar of negligible weight is supported as shown. The assembly is initially stress-free.…

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Q: A circular aluminum alloy [E = 70 GPa; a = 22.5 × 10-6/°C; v = 0.33] pipe has an outside diameter of…

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Q: the assembly consists of three disk a b and c that are used to support the load of 140kn if d1=25mm…

A: We know,Stress = ForceArea⇒ σ = FA   Compressive stress for the disc A -  σA = 140×10325×10⇒σA = 560…

Q: Knowing that a 0.02-in. gap exists when the temperature is 75°F, determine (a) the temperature at…

A: (a)  Allowed enlongation  =0.02 inNormal  Stress in  aluminium bar   σA =11  ksi  (comp.)at same…

Q: 2) The concrete pedestal in the system above has a diameter of 0.5m and a thickness (height) of…

A: Diameter of pedestal=0.5 m Thickness of pedestal = 250 mm Load = 500 kN Cross-sectional area of the…

Q: 1/2 Problem 1: Two solid cylindrical rods AB and BC are welded together at B and loaded as shown in.…

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.